package c02;

public class Xiexie19 {
    public static void main(String[] args) {
        int sum1 = add(1,2);

        double sum3 = add(1.2,1.3);
    }
    public static int add(int x ,int y){
        return x + y;
    }

    public static int add(int x, int y,int z){
        return  x + y + z;
    }
    public  static double add(double x,double y){
        return x + y;
    }
}
